B then C
i have a 20 character limit so i’m just typin here
Answer:
-8
Step-by-step explanation:
Following Order of Operations rules, we evaluate anything within parentheses first:
8-[12-(-4)] = 8 - 16 = -8
B
calculate the slopes m of the 2 lines using the gradient formula
m = (y₂ - y₁ ) / (x₂ - x₁ )
with (x₁, y₁ ) = C(- 2, 4) and (x₂, y₂ ) = D(0, - 4 )
= 
= 
= - 4
repeat with (x₁, y₁ ) = F(- 4, 0 ) and (x₂, y₂ ) = G(4, 2 )
= 
= 
= 
The 2 lines are perpendicular because their slopes are negative reciprocals
Answer:
32.40
Step-by-step explanation:
81 x 40% =48.60
81. -48.60 = 32.40
Answer:
Formula for volume of square pyramid:-
V = 1/3 x a^2 x h
Where 'a' is the length of one side of the base, and 'h' is the height.
Plug in our values, given that:
16.6m = side length of base.
9.1m = height of pyramid.
V = 1/3 x a^2 x h
V = 1/3 x 16.6^2 x 9.1
V = 1/3 x 275.56 x 9.1
V = 1/3 x 2507.596
V = 2507.596/3
V = 835.865, which rounds to <u>835.9 cubic meters</u>.
